Narrative:

Upon checking the tyo-us flight plans, I found that the filed rtes matched each other, but did not match the NOTAM for these flts. I had a co-worker verify the information with tokyo center, who indicated the filed rtes were correct, meaning the NOTAM in my possession was incorrect. Steps were taken to ensure all aircraft were on the correct rtes, however, extreme concern existed that a flight might still fly the route on the original NOTAM, which almost certainly would have resulted in a loss of separation. Apparently, the revised information regarding the rtes was never given to the ZOA oceanic area from ZOA flow control. While this information would not have eliminated the concerns, it would have provided a better indicator as to the scope of the potential problem, thus reducing the concern and enabling ATC to provide better, more positive service to the user.

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Original NASA ASRS Text

Title: ARTCC INTRAFAC COORD FLOW CTL FAILED TO INFORM OCEANIC SECTORS OF CHANGE TO PUBLISHED RTES.

Narrative: UPON CHKING THE TYO-US FLT PLANS, I FOUND THAT THE FILED RTES MATCHED EACH OTHER, BUT DID NOT MATCH THE NOTAM FOR THESE FLTS. I HAD A CO-WORKER VERIFY THE INFO WITH TOKYO CTR, WHO INDICATED THE FILED RTES WERE CORRECT, MEANING THE NOTAM IN MY POSSESSION WAS INCORRECT. STEPS WERE TAKEN TO ENSURE ALL ACFT WERE ON THE CORRECT RTES, HOWEVER, EXTREME CONCERN EXISTED THAT A FLT MIGHT STILL FLY THE RTE ON THE ORIGINAL NOTAM, WHICH ALMOST CERTAINLY WOULD HAVE RESULTED IN A LOSS OF SEPARATION. APPARENTLY, THE REVISED INFO REGARDING THE RTES WAS NEVER GIVEN TO THE ZOA OCEANIC AREA FROM ZOA FLOW CTL. WHILE THIS INFO WOULD NOT HAVE ELIMINATED THE CONCERNS, IT WOULD HAVE PROVIDED A BETTER INDICATOR AS TO THE SCOPE OF THE POTENTIAL PROB, THUS REDUCING THE CONCERN AND ENABLING ATC TO PROVIDE BETTER, MORE POSITIVE SVC TO THE USER.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.